Phonographic clock.



FRANCISCO MNDEZ GIL.

PHONOGRAPHIC CLOCK.

APPLICATION FILED DEC. 27. 1917.

1,305,596. Patented June 3,1919.

FRANCISCO MNDEZ GIL, F MEXICO, MEXICO.

' PHON OGRAPHIC CLOCK.

Specication of Letters Patent.

Patented June 3, 1919.

Application filed-December 27, 1917. Serial No. 209,112.

To all whom t may concern.'

' B'e it known that I, FRANCISCO MNDEZ GIL, a citizen of the Republic ofMexico, and

a resident of city of Mexico, Mexico, have invented certain newandusefulImprovements in Phonographic Clocks, of which the following is a' fulland clear specification.

The object of this invention is to provide Va simple reliableelectro-mechanical mechanism for periodically operating a talkingmachine through the medium of a clock or other time-piece, whereby, atdesired intervals, the operation of the clock will cause an automaticoperation of the talking machine to announce the hour or fractions ofthe hour and also, either in addition thereto or separately, make otherannouncements, such as advertisements, as more fully hereinafter setforth.

In the drawing- Figure l is a view,partly in diagram and partly insection, showing one preferred wirincr system;

2Fig. 2 is a detail view, enlarged, showing one type of wiping contactsthat may be employed for closing the local circuit of the motor-circuitand circuit-closer; and

Fig. 3 is a View similar to Fig. 2 showing another type of Contact.

In the drawing, the numeral l indicates a wheel which is geared to orotherwise connected to the clock mechanism, so as to make a completerotation in any given period of time, say, one minute. In the peripheryof :this wheel is formed a series of notches or indentations a,preferably four in number, each notch having an abrupt edge which facesin the direction opposite -t o the direction of rotation of the wheel,the direction of rotation of the wheel being indicated by an arrow,while its other ed e or face curves into the periphery of the wheel. andthus forms a cam-like surface.

Above the center of rotation of the Wheel 45 1, on a pivot 3, is mounteda lever 2 which at one side of the pivot lcarries a depending finger 4which normally rests on the periphery of the wheel l and which at theother side of the pivot .3 carries a contact 5 which I0 is adapted tocontact with a screw-contact 6.

At the end of this lever, opposite the contact 5, is a yielding contactwhich is adapted to make contact with a contact 33, which contact ismounted on a rod 37 which is adapted to be vertically adjusted by asetscrew 30, which contact 33 is normally drawn toward contact' 20 by aspring 33. Also carried by the lever 2 is an arm 4 which isv preferablyan extension of the finger 4 and carries on its extreme end a piece ofinsulating material 4 in such position as to engage under thespring-contact 3.3 and lift the same of contact 20 when the lever 2 istilted upwardly at that end. The contact arm 33 is prevented from beingpulled down below its normal position by a lug 33 carried at the upperend of rod 37.

rIhe contact 6 is mounted upon a screwbolt 34 which works through a`post 34 and is provided with a thumb-nut 25, whereby contact 6 may beadjusted with respect to contact 5.. The contacts 5 and 6 are includedin a circuit 35, in which is a battery 35 and an electro-magnet 8. Whenthis circuit 35 is closed by the contacts 5 and 6 coming together, themagnet 8 is energized and attracts its armature 11. This movement of thearmature l1 brings contacts 10 and l2 together and thus closes a motorcircuit 39-40, in which the motor 15 is included, this circuit obtainingits current from a main or a local source 'of sufficient electro-motiveforce to operate the motor 15. This motor l5 is connected by a beltv 17to the operatingwheel of the phonograph 16.

Adjacent the phonograph is located av magnet 18 Whose armature isprovided' with a brake-shoe 19, which, when the armature is attracted,presses on the belt 17-and thus, gy a braking action stops thephonograph.

his magnet 1,8 is in a circuit 38, one branch of which is electricallyconnected to contact 33 and the other branch of which is cony nected toabinding post 14 which carries an adjustable screw 14 positioned so as tomake contact with a contact 11 on the armature 11 when magnet 8 isdenergized.

It will be observed' that when the finger 4 drops into one of thenotches in the wheel 1, the contacts 5 and 6 will be closed, thereby, asabove set forth, closing the motor circuit and bringing abouttheoperation of the phonograph. As the wheel 1 rotates, the left end oflever 2 will be tilted upwardly and thus break contact with 5 and( 6,thereby cutting off the current from the motor. he parts are so adjustedthat the instant after the motor is cut out, the lcontact 20 willContact with part 33 and thus close circuit 36-88 of the magnet 18,whereupon brake-shoe 19 will. be applied to the phonograph and thus stopthe same. As the wheel 1 continues to rotate and thus further tilt theleft end of lever 2 upwardly, the arm 4 will cause a separation ofcontacts'20 and 33v and thus break circuit 38, thereby releasing brake19, thereby leaving the talking machine ready to be again operated. -Itwill lbe observed that. the time during which the phonograph shallcontinue to run may be varied' by varying lthe adjustments atcontacts 5and 6, the more close the adjustment -the shorter the period ofoperation, as is obvious.

In order to permit the usual use of the talking machine independently ofthe clock, I provide a switch b in the circuit 359-40, whereby saidcircuit may be closed manually without regard tothe clock-operated'automatic mechanism.

It will be understood that any suitable arrangement may be employed forkeeping the contacts 5 and 6 in contact until the predetermined time forthe separation has arrived. In Fig. 2 I show one way of doing this. Inthis View, contact 5 slides along on 'contact 6 until the ingerA: tiltsthe lever far enough to disconnect it from contact 6. It willv beobserved' that by vertically adjusting contact 6, the interval of timeduring which the contacts are in engagement may be varied and thus varythe time of the running of the talking machine. The contact 5 is elasticso as to press against the downwardly-inclined surface of the contact 6.In the' structure shown in Fig. 3, this same result is obtained 'byemploying a flat elastic contact 5 adapted to flex slightly when pressedagainst the point of screw contact 6 by the spring 41. v

The nature and scope of the invention having been thus indicated and itspreferred end of said lever, one pair of contacts con` trolling theoperation of the motor, and an electro-magnetic brake appliancecontrolled by the other pair of contacts.

f2. In combination, a time-piece, a talking machine, an electric motorlfor operating the i talking machine, means operated by the time-piecefor closing the motor circuit, said means emloodying an electro-magneticdevice having a movable armature forming part of the motor circuit, abrake for the phonograph, an electro-magnetic device for operating thisbrake including a circuit and means for closing contacts in said circuitat one point when said armature is retracted to open the motor fcircuit,and means for closing this brake circuit at another point by operationof the time-piece.

3., In combination, a time-piece, a talking machine, an electric motormeans for driving the talking machine, means operated by the time-piecefor periodically opening and closing the circuit of the motor, anelectric brake means for the phonograph including a circuit, and meansoperated from the time-piece for first closing this circuit to apply the'brake to thus stop the phonograph after the motor-circuit is broken andthen opening the 4circuit to release the brake.,

In testimony whereof I hereunto aliix my signature.

FRCO. MNDEZ GIL.

